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dorKk · English lesson guide

Grade 9 Natural Science: modules and lessons

Explore Grade 9 Natural Science: 12 modules and 57 lesson entries. Use the dorKk lesson guide to plan revision and catch-up study.

dorKk provides pre-recorded CAPS-aligned video lessons for self-paced study alongside schoolwork. Choose a module below, find the lesson that matches your classwork, and use the sequence to identify gaps. This guide lists lesson titles; access to the videos depends on your subscription. dorKk is not an online school.

Source: dorKk English lesson list dated 21 January 2026. Catalogue entries may differ from current app availability.

Plan your study

  1. Choose the module you are currently studying at school.
  2. Try a textbook question first and note where you get stuck.
  3. Watch the matching lesson, try again and keep a list of questions for your teacher.

CELLS AS THE BASIC UNIT OF LIFE

  1. 1.1.CELL STRUCTURE
  2. 1.2.DIFFERENCE BETWEEN PLANT AND ANIMAL CELLS
  3. 1.3.CELLS IN TISSUE, ORGANS AND SYSTEMS

HUMAN REPRODUCTION

  1. 2.1.PURPOSE AND PUBERTY
  2. 2.2.REPRODUCTIVE ORGANS
  3. 2.3.STAGES OF REPRODUCTION

Module not specified

  1. 3

DIGESTIVE SYSTEM

  1. 4.1.HEALTHY DIET
  2. 4.2.ALIMENTARY CANAL AND DIGESTION

COMPOUNDS

  1. 5.1.PERIODIC TABLE PART 1
  2. 5.2.PERIODIC TABLE PART 2
  3. 5.3.NAMES OF COMPOUNDS

CHEMICAL REACTIONS

  1. 6.1.REACTANTS AND PRODUCTS
  2. 6.2.CHEMICAL EQUATIONS TO REPRESENT REACTIONS
  3. 6.3.BALANCED EQUATIONS

REACTIONS OF METALS WITH OXYGEN

  1. 7.1.GENERAL REACTION OF METALS WITH OXYGEN
  2. 7.2.REACTION OF IRON WITH OXYGEN
  3. 7.3.REACTION OF MAGNESIUM WITH OXYGEN
  4. 7.4.FORMATION OF RUST
  5. 7.5.WAYS TO PREVENT RUST

REACTIONS OF NONMETALS WITH OXYGEN

  1. 8.1.GENERAL REACTIONS OF NONMETALS WITH OXYGEN
  2. 8.2.REACTION OF CARBON WITH OXYGEN
  3. 8.3.REACTION OF SULFUR WITH OXYGEN

ACIDS, BASES AND PH VALUE

  1. 9.1.CONCEPT OF PH VALUE
  2. 9.2.NEUTRALISATION AND PH

REACTION OF ACIDS AND BASES

  1. 10.1.THE GENERAL REACTION OF AN ACID AND METAL OXIDE
  2. 10.2.THE GENERAL REACTION OF AN ACID AND METAL HYDROXIDE
  3. 10.3.THE GENERAL REACTION OF AN ACID AND METAL CARBONATE
  4. 10.4.REACTION OF ACIDS WITH METALS
  5. 10.5.APPLICATIONS

ENERGY AND CHANGE

  1. 11.1.TYPES OF FORCES
  2. 11.2.CONTACT FORCES
  3. 11.3.NON CONTACT FORCES
  4. 11.4.ELECTRIC CELLS
  5. 11.5.USES OF RESISTORS
  6. 11.6.FACTORS AFFECTING RESISTANCE
  7. 11.7.SERIES AND PARALLEL CIRCUITS
  8. 11.8.SAFETY WITH ELECTRICITY
  9. 11.9.ELECTRICITY GENERATION
  10. 11.10.NUCLEAR POWER IN SOUTH AFRICA
  11. 11.11.NATIONAL ELECTRICITY GRID
  12. 11.12.THE COST OF POWER CONSUMPTION

PLANET EARTH AND BEYOND

  1. 12.1.SPHERES OF THE EARTH
  2. 12.2.LITHOSPHERE
  3. 12.3.THE ROCK CYCLE
  4. 12.4.EXTRACTING ORES
  5. 12.5.REFINING MINERALS
  6. 12.6.MINING IN SOUTH AFRICA
  7. 12.7.ATMOSPHERE
  8. 12.8.TROPOSPHERE
  9. 12.9.STRATOSPHERE
  10. 12.10.MESOSPHERE
  11. 12.11.THERMOSPHERE
  12. 12.12.GREENHOUSE GASES
  13. 12.13.THE BIRTH OF A STAR
  14. 12.14.THE LIFE OF A STAR
  15. 12.15.THE DEATH OF A STAR

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